kerouanton



March 18, 1930. P, KEROUANTON 1,751,041

AUTOMATIC NEEDLE VALVE CLOSER Filed April 50 1929 2 Sheets-Sheet 1 ,J nimm,

INVENTOR PLGYYS Kerouan'on ,Attomfley .March 18 1930- P. KERQUANTON 1,751,041

AUTOMATIC NEEDLE VALVE CLOSER Filed April 30. 1929 2 Sheets-Sheet 2 NVENT'OR Pierre Kelfouanorb Attorney Patented Mar. 18, 1930y unir S fi: s

aan? in AUTOMATIC NEEDLE-VALVE CLOSER l Application filed April 30,

This invention relates to a device to automatically close a needle valve on a gasoline engine and thereby stop the said engine. The primary object being to provide such a device that will, in conjunction with an alarm clock of standard make, stop an engine to which it is attached at any predetermined time.

A further object is to provide such a mechanism that is simple, eiiicient, and inexpensive to manufacture and that will not easily become inoperative or get out of order.

The advantages of this invention are numerous for instance a farmer may set an f' engine equipped with the device to pump water for a specified length of time and then go to some distant field and leave the engine unattended knowing that the gasoline supply will be closed and the engine stopped when the time has elapsed.

With these and other objects in view as will appear as the description proceeds, the invention consists in the novel construction and arrangement of parts as hereinafter more specifically set forth, claimed and shown in the accompanying drawings forming a part of this present application and in' which:

Figure 1 is a front elevation of my invention showing alarm clock secured to the same.

Figure 2 is a plan view of the slotted plate by which the device is connected to the needle valve.

Figure 8 is a rear elevation of the device with alarm clock in place.

Figure 4 is a plan view, with the clock and part of the frame omitted.

Referring more in detail to the drawings in which similar reference characters designate corresponding parts throughout the several views it will be seen that the invention comprises a frame 10 to which is secured a shoe 11 at right angles thereto. On the top of said shoe 11 are located a pair of angle brackets 12 designed to suit the alarm clock is of standard manufacture throughout. These brackets 12 are bolted to the shoe 11 and the legs of the clock securely fastened to the brackets to hold the clock rigidly to the frame. 14 is the main shaft and is pivoted in the shoe at 15 and supported 1929. Serial No. 359,370'.

in the frame 10 by the bearing 16. Wound about this shaft is a spring 17 having oneV end secured to the said shaft and the other end secured to the spring casing 18 in which it is enclosed. rThe said spring casing being fastened to the shoe 11. A lever 19- entends atright angles from the shaft 14 as a means of turning the said shaft as will be explained A later. mounted on the shaft 14..

Mounted in the side of the shoe 11 is a lever 21 which entends upwards to thealarm windsing key 22 en the clock 13 and is designed tof rest againstthe lower part of same. Thislever 21 is controlled by a spring 23 secured' at one end to the said lever and at the other end to the screw 24 in the frame 10. An arm 25 is bolted to that part of the lever21 which extends through the shoe 11. Pivoted on the main frame is a catch 26 having a pointed end. 27 to engage the teeth of the ratchet wheel 20. A spring 28 is provided to keep the catch in connection Awith the ratchet wheel. This spring is secured to the outer end 29 of the catch 26 and to a cotter pin 80 This catch is connected tol in the frame 10. the arm 25 by means of a link 31.v

At the lower end of thel main shaft is secured a slotted plate 32 as a means of connecting the device to the pins on the upper end of the usual type of needle valvestem.V rThis part may be designed to suit conditions, The4 main frame 10 may also be drilled to suitfthe particularmake of engine on which the invention is to be used.

The manner of operating the invention is as follows:

The alarm is wound and set to the time it is desired that the engine should be stopped. The engine is now started and the needle A toothed ratchet wheel 20A is alsoA valve opened and adjusted by means of the y.

lever 19. 1t will be noticed that in turning the shaft to set the needle valve, the spring 17 is wound tighter around the shaft14. Now the lever 21`is brought to rest against the alarm winding key 22 and the catch 26'is permitted to engage the sprocket wheel 20 which prevents the shaft 14 from turning.

l/Vhen the alarm is released the key 22 turns as shown bythe arrows Fig. 3, which permits d the lever 21to be pulled.l downwards by the Y spring 23. This causes the catch 26 to be disengaged from the sprocket Wheel by means of the varm 25 and the'oonnectin'g link 31 andk s permitsthe shaft 114 to be turned by the spring 17 unwinding. Note that theshaft Will onlyv be turned asimilar number of `revolutions by rthe unwinding of the spring as it Was by the Winding up of the spring Whenjthe needle 1o Valve' was being openedfand will therefore,

i be just suflicient to close, the said needle valve vand stop the eng-ine,.-

It is .believed thatkthe constructionand'ladl I l j vant-ages of the struoture shown maybe ap,-

V parent rr-om'the foregoing paragraphs taken in Vconnection *with the accompanying drawings Without further detailed description.

' While the preferred embodiment of Ythe invventionhasbeen di'selos'edjit isunderstood I 20 thatininor changes in the details of construction,"n combination and arrangement v of coopera'tingep'arts may be resorted to Within the Y scope of what is claimed Without departing romthe spiritfof'the invention. i s What I olaimisz 'i Ina'n automatic-needle valve shutter for j use on a' gasoline engine 7;' a main 'frame mem-V ber having a seeondary frame secured thereto; ashaft mounted in a bearing in the main frame and pivoted at its yupper end in the secondaryframe; va vshaft-1adjustinglever eX- tending at right'angles from said shaft; a spring enclosedYV in a spring case, saidA oase beingfseeured to the seoondaryf frame; y'the spring beingffastened tothe shaft on" its inner-fend and to the oase at its outer end; a toothed Wheel mounted Von said shaft;V a catch. pivoted on main frame to engage said toothed Wheel; Ian alarm clock lmounted on the vseo- 40 ondary frame; a lever pivoted'n the seof I ondary frame extending upwards to engage the Winding-key onv the alarm'olook, 'a spring "to'control said lever; 'a connecting arm and link vfrom the lever' to the aforementioned 5 toothed Wheel Catch anda means of oonneoting the lower end of the shaft to thefneedle ,v valve stem of the gasoline engine, s'ubstai'i-,

tially as 'set-forth.V J testimony whereof 'I affix Vmy signature.y

,PIERRE KEROUANTON; 

